2026年知识与能力训练七年级英语下册沪教版第63页答案
(
) 7.— May I watch TV for a while?
— No, you
. You have to finish your homework first.

A.shouldn’t
B.needn’t
C.mustn’t
D.won’t

答案

C

解析

题中“May I...?”的否定回答应用“No, you mustn't.”,“mustn't”表示“禁止,不允许”,符合语境,即不允许看电视,要先完成作业。A选项“shouldn’t”表示“不应该”;B选项“needn’t”表示“不必”;D选项“won’t”表示“不会”,均不符合题意。
(
) 8.— Excuse me, where are we going to have our class meeting?
— I’m not sure. Ask our monitor, please. He
know.

A.can
B.may
C.need
D.shall

答案

B

解析

根据上文“I’m not sure.”可知,这里表示不太确定的推测,语气较弱。A选项“can”表示能力或理论上的可能性;B选项“may”表示可能的推测;C选项“need”表示需要;D选项“shall”用于第一人称表示将来或征求意见。根据题意,这里应选表示可能的“may”。
(
) 9.— Do you know whose dictionary it is?
— It
Li Lei’s. His name is on it.

A.can be
B.must be
C.may be
D.might be

答案

B

解析

根据题意,—你知道这是谁的字典吗?—它一定是李雷的,上面有他的名字。由“His name is on it”可知说话者对字典的主人有很大的确定性。在选项中,“must be”表示最肯定的推测,符合题意。其他选项“can be”、“may be”、“might be”的推测程度不如“must be”肯定,因此排除。
(
) 10.— Susan has bought a large house with a swimming pool.
— It
be very expensive. I never even dream about it.

A.must
B.might
C.can’t
D.shouldn’t

答案

A

解析

根据前句“Susan买了带游泳池的大房子”,后句“我从未梦想过”,可推测房子“一定”很贵。must表示肯定推测“一定”,符合语境。might“可能”语气较弱;can’t“不可能”;shouldn’t“不应该”均不符合。
Ⅱ. Fill in the blanks with needn’t or mustn’t.
1. Nancy
go to bed early. Tomorrow is her day off.
2. You
smoke on buses. It’s forbidden.
3. You
do it now. You can finish it later.
4. Students
use their mobile phones during the lessons.
5. You
buy any meat. There is plenty of it in the fridge.
6. You
bring a swim suit. I can lend you one.
7. It’s a secret. You
tell anybody.
8. You
do the washing up. We have a dishwasher.

答案

1. needn't
2. mustn't
3. needn't
4. mustn't
5. needn't
6. needn't
7. mustn't
8. needn't

解析

1. 句意是“南希不必早睡,明天她休息”,“不必”用needn't,表示不需要做某事。 2. “在公交车上吸烟是被禁止的”,“mustn't”表示禁止,一定不能做某事。 3. “你不必现在做,可以之后完成”,“不必”用“needn't”。 4. “学生在上课期间禁止使用手机”,“mustn't”表示规定不允许做某事。 5. “你不必买肉,冰箱里有很多”,“不必”用“needn't”。 6. “你可以不用带泳衣,我能借给你”,“不必”用“needn't”。 7. “这是秘密,你一定不能告诉任何人”,“mustn't”表示禁止。 8. “你不必洗碗,我们有洗碗机”,“不必”用“needn't”。
Ⅲ. Choose the right modal verbs.
(
) 1. He had been working for more than 11 hours. He
be tired after such hard work. He
prefer to get some rest.
A. can’t; need
B. need; can
C. had better; must
D. must; may
(
) 2. I
speak Arabic fluently when I was a child. Now, I
only say a few things in the language.
A. might; may
B. could; can
C. can; must
D. must; need
(
) 3. The teacher says we
read this book for our own pleasure as it is optional, but we
read it if we don’t want to.
A. must; could
B. needn’t; need
C. can; needn’t
D. should; mustn’t
(
) 4. —
you stand on your head for more than a minute?
— No, I
.
A. May; may not
B. Need; needn’t
C. Must; shouldn’t
D. Can; can’t
(
) 5. If you want to cross the road, you
to hurry up. You
stop when the traffic light is red.
A. could; could
B. need; must
C. needn’t; may
D. mustn’t; needn’t
(
) 6. You
leave small objects lying around. Such objects
be swallowed by children.
A. shouldn’t; may
B. need; must
C. needn’t; need
D. may; might

答案

1. D
2. B
3. C
4. D
5. B
6. A

解析

1.第一空,根据“He had been working for more than 11 hours”可知,他工作了11个小时,所以一定是累了,“must”表示肯定推测。第二空,他工作了11个小时,所以可能是想要休息,“may”表示可能。
2.第一空,根据“when I was a child”可知,时态是一般过去时,“could”是“can”的过去式,表示能力。第二空,根据“Now”可知,时态是一般现在时,所以用“can”。
3.第一空,“as it is optional”表示这是可选的,所以老师是说我们可以出于自己的兴趣读这本书,“can”表示可以。第二空,根据“if we don’t want to”可知,如果我们不想读,就可以不读,“needn’t”表示没有必要。
4.第一空,根据“stand on your head”可知,此处是在询问能不能倒立,“can”表示能力。第二空,根据“No”可知,此处是否定回答,所以是“can’t”。
5.第一空,根据“If you want to cross the road”和“to hurry up”可知,此处是如果你想穿过马路,你需要快点,“need to do sth.”是固定搭配,表示需要做某事。第二空,根据“when the traffic light is red”可知,当红灯的时候,你必须停下来,“must”表示必须。
6.第一空,根据“leave small objects lying around”和“be swallowed by children”可知,此处表示你不应该把小物件乱放,“shouldn’t”表示不应该。第二空,这样的物体可能会被孩子吞下,“may”表示可能。